#ifndef __UTILS_H__
#define __UTILS_H__
#include "../include/head.h"
// 声明函数
PUserNode user_creat_list();
int user_tail_insert(PUserNode head, users value);
PUserNode user_login(PUserNode head);
void users_register(PUserNode head);
int modify_username(PUserNode currentUser, PUserNode userList);
int modify_user_password(PUserNode currentUser, PUserNode userList);
#endif // __UTILS_H__
